7a8b1f683b
Instead of allocating, using, and then releasing a zend_string for every property name unconditionally, only do so when the minimum supported version of PHP does not have that string in its known strings (ZEND_KNOWN_STRINGS). If the string is already known, just use the known version directly. This is already done for some non-generated class registrations, e.g. in `zend_enum_register_props()`.